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Just been for a blast in the Zed to test the brakes, so I was doing a series of acceleration/ heavy braking blasts. All seemed spot on, but on the way back I just got the impression the car wasn't giving me full power, even though boost gauge shows full swing. Pulled on the drive, popped the bonnet to check my handy work, all looked good then all of a sudden the engine cut out. No hesitation, just like I had turned the ignition off. All the dash lights were on, tried to restart, no joy....code 21 recorded.

Suspecting PTU...

 

Any thoughts??

 

Only job I've done today is change the brake booster, I have checked all the vacuum lines/connections in that area, but suspect this fault is unrelated to any work I've done.

Cheers....

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Well code 21 is the ignition circuit, So PTU usually fails when it gets hot and

if you cool it down, it should start again.

Save any fanny arsing around, whack a series 2 one on, unless you already got one lol

smithy

  • Author
i got a spare one here if you wana try it mate just to be sure???

 

May take you up on that - if it doesn't start in the morning Mike....Cheers.

May take you up on that - if it doesn't start in the morning Mike....Cheers.

 

If it is the PTU which 99% it will be. Then the car will start every time when the engine is cold.

 

Once it is warm in say 10min she will conk out on you again :(

  • Author

Just an update on this one. Took the car out again for a blast, within 10minutes it just out completely. No messing - just like switching it off.

Swapped the PTU at the road side (very easy to do) started straight up - Problem solved.:)

 

A quick thanks to Mike Bean for lending me a good PTU to confirm the problem and see me through until I get a new 2nd generation unit.:bow:

 

On a different note, spent a couple of hours with Mike Bean yesterday while he was on with CraigyTT's engine rebuild - he certainly knows how to work on the Zed and would not hesitate to ask him if I needed a job doing.

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